Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×

NTK® OE Type Oxygen Sensor 21546

NTK OE Type Oxygen Sensor 21546
$45.42
In Stock. Ships in 1-3 Business Days

Vehicle Specific

Check if it fits by entering your vehicle info
Select Your Vehicle
  • Specifications
  • Features
  • Installation
  • Vehicle Fitment
  • Specifications

    BrandNTK
    Part Number21546
    Part DescriptionOE Type Oxygen Sensor
    Mounting TypeThreaded
    Sensor TypeHeated
    Thread Diameter18.000
    Universal Or Specific FitSpecific
    UPC087295215463
    Wire Quantity4
    Wiring Harness Length16.5000
    Warning: California’s Proposition 65
  • Features

    NTK OE Type Oxygen Sensor are featured as follows:
    • Decreases vehicle fumes emissions, but increases fuel economy and engine performance.
    • Meet the criteria of OE standards and specifications.
    • It has been widely researched during manufacture to assure quality and reliability.
    • By installing it with a factory-fitted OE connector that is waterproof, installation is made easier.
    • This part manages both the fuel and ignition systems to maximize the car's improved mileage on fuel and emissions.
    • Made of high-quality materials for long-lasting durability and a perfect fit.
    • They are designed by NGK, a company that does research on ways to reduce emissions as well as improve mileage of fuel and engine efficiency.
    The NTK OE Type Oxygen Sensor 21546 is a top-quality device designed to increase vehicle fuel economy and engine performance while decreasing exhaust emissions. Direct replacement that meets original equipment standards and specifications. Extensively tested during manufacture to ensure quality and reliability. Equipped with a waterproof factory fitted connector for easy installation. Incorporates NTK premier technical ceramics in its sensing element. It plays a crucial role in controlling the fuel and ignition systems to optimize vehicle performance. Ensuring proper engine performance, optimum mileage and low emission of air pollutants. If the sensor fails or wears out, it can lead to increased fuel consumption, poor driveability and potential failure of the catalytic converter. Designed and manufactured to meet OE requirements for fit, form, and function.
    Part of its ongoing research to reduce emissions and improve fuel mileage and engine efficiency has led NGK to develop its NTK product line. These NTK products are made from top materials, which is why they are OE approved with better quality and durability.
  • Installation

  • Vehicle Fitment

    Year Make Model Trim Engine
    2005-2009 Buick AllureAll Trims6 Cyl 3.8L
    2008 Buick EnclaveAll Trims6 Cyl 3.6L
    2005-2009 Buick LaCrosseAll Trims6 Cyl 3.8L
    2007-2008 Buick LucerneAll Trims6 Cyl 3.8L
    2009-2011 Buick LucerneAll Trims6 Cyl 3.9L
    2005 Buick RainierAll Trims8 Cyl 5.3L
    2006-2007 Buick RendezvousAll Trims6 Cyl 3.5L
    2005-2006 Buick TerrazaAll Trims6 Cyl 3.5L
    2006-2007 Buick TerrazaAll Trims6 Cyl 3.9L
    2009-2015 Cadillac CTSAll Trims8 Cyl 6.2L
    Show More

Buy with Confidence

  • Dedicated Service
    Experienced professionals are ready to help
  • Unbeatable Prices
    Affordable prices with superior high quality
  • Fast Delivery
    Deliver your orders as quickly as possible